Home / 3,178,679.20-4,768,018.80-1,183,722.40

Finding the Fourth Proportional to 3,178,679.20, 4,768,018.80 and 1,183,722.40

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Solution

The fourth proportional to 3,178,679.20, 4,768,018.80 and 1,183,722.40 is: 1,775,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,679.20 : 4,768,018.80 = 1,183,722.40 : x
  2. Step 2: Convert to fraction form
    3,178,679.20/4,768,018.80 = 1,183,722.40/x
  3. Step 3: Cross multiply
    3,178,679.20x = 4,768,018.80 × 1,183,722.40
  4. Step 4: Simplify right side
    3,178,679.20x = 5,644,010,657,181.12
  5. Step 5: Solve for x
    x = 5,644,010,657,181.12/3,178,679.20
  6. Step 6: Final answer
    x = 1,775,583.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.